DOWNLOAD LG WD-15439BDA Service Manual ↓ Size: 7.78 MB | Pages: 62 in PDF or view online for FREE

Model
WD-15439BDA
Pages
62
Size
7.78 MB
Type
PDF
Document
Service Manual
Brand
Device
Washing Machine
File
wd-15439bda.pdf
Date

LG WD-15439BDA Service Manual ▷ View online

16
6. WIRING DIAGRAM/PROGRAM CHART
17
7. TEST MODE
18
7-1. SAFETY CAUTION
There's built-in AC 110V and DC power in output terminal of PWB assembly in common. Be careful electric
shock when disconnecting parts while trouble shooting. (Wear Electro Static Discharge gloves when working.)
After cutting off the power when changing PWB assembly, disconnect or assemble.
Be careful static when handling PWB assembly, and use Electro Static Discharge plastic pack when delivering
or keeping it. 
7-2. LOAD TEST MODE.
The washer must be empty and the controls must be in the off state. 
1. Press the SPIN SPEED and SOIL LEVEL buttons simultaneously.
2. Press the Power       button, while the above condition. Then buzzer will sound twice.
3. Press the Start/Pause      button repeatedly to cycle through the test modes.
7-3. HOW TO CHECK THE WATER LEVEL FREQUENCY
Press the WASH/RINSE and DELAY WASH button simultaneously.
None 
1 time 
2 times 
3 times 
4 times 
5 times 
6 times 
7 times 
8 times 
9 times 
10 times 
11 times 
12 times 
13 times 
14 times 
15 times 
Turns on all lamps and locks the door.
Tumble clockwise.
Low speed Spin.
High speed Spin.
Inlet valve for prewash turns on.
Inlet valve for main wash turns on.
Inlet valve for hot water turns on.
Inlet valve for steam turns on.
Inlet valve for bleach turns on.
Tumble counterclockwise.
Heater turns on for 3 sec.
Circulation pump turns on.
Drain pump turns on.
Water level Sensor for Steam
Steam Heater turns on for 1.2 sec.
Off
rpm (42~50)
rpm (55~65)
rpm (125~135)
Water level frequency (25~65)
Water level frequency (25~65)
Water level frequency (25~65)
Water level frequency (25~65)
Water level frequency (25~65)
rpm (42~50)
Water temperature
Water level frequency (25~65)
Water level frequency (25~65)
Water level frequency of TSG(0~255)
TSG temperature
-
The digits indicate the water level frequency ( x.1 kHz ).
So, for example a display indicating 241: a Water level frequency of 241 x.1 kHz
=  24.1 kHz
Number of times the
Start/Pause button is pressed
Check Point
Display Status
There’s built-in AC 120V and DC power in output terminal of PWB assembly in common. Be careful
electric shock when disconnecting parts while trouble shooting. (Wear Electro Static Discharge gloves
when working.)
After cutting off the power when changing PWB assembly, disconnect or assemble.
Be careful static when handling PWB assembly, and use Electro Static Discharge plastic pack when
delivering or keeping it. 
19
8. TROUBLESHOOTING
8-1. SAFETY CAUTION
8-2. ERROR MODE SUMMERY
ERROR
SYMPTOM
CAUSE
WATER INLET
ERROR
1
IMBALANCE 
ERROR
2
DRAIN
ERROR
3
OVER FLOW 
ERROR
4
PRESSURE 
SENEOR
ERROR
5
DOOR OPEN 
ERROR
6
HEATING 
ERROR
7
• Correct water level (246) is not reached within 8 minutes 
after water is supplied or it does not reach the preset water
level within 25 minutes.
• The load is too small.
• The appliance is tilted.
• Laundry is gathered to one side.
• Non distributable things are put into the drum.
• Door not all the way closed.
• Loose electrical connections at Door switch and PWB
Assembly.
• The DOOR SWITCH ASSEMBLY is out of order.
• Not fully drained within 10 minutes.
• The SENSOR SWITCH ASSEMBLY is out of order.
• The THERMISTOR is out order.
• Water is overflowing (water level frequency is over 213). 
If               is displayed, the drain pump will operate to drain
the water automatically.
If you press the START/PAUSE button when an error is displayed, any error except 
will
disappear and the machine will go into the pause status.
In case of 
,
,
if the error is not resolved within 20 sec., or the in case of other errors,
if the error is not resolved within 4 min., power will be turned off automatically and the error code will
blink. But in the case of 
, power will not be turned off.
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